Hello all,
I am building a gate out of 6/4 cedar for our new garden. Obviously, the gate will be outside and exposed to the elements (lots of rain as we live in the PNW). I want to be sure to place tenons connecting the rails to the stiles in a way that will allow for the rails to expand and contract through the seasons. I am using cedar shop-made floating tenons and the domino machine (the tenons pictured are just for reference). My question is: Should I only glue the middle tenon to the rail and stile and leave the top and bottom tenons for alignment OR is it okay to glue up all three tenons to the rail and stile? Is there a better tenon configuration that would provide strength and movement for the rails?
Many thanks for any thoughts and advice – Kristopher
Replies
In my humble opinion, the rails and stiles aren't wide enough to worry about uneven expansion or contraction, I'd glue all 3 for the most strength
Thanks, the rails are 6" wide and the stiles are 4" wide. I appreciate the response.
What eddo said.
Thanks.
I'd probably leave the bottom tenon unglued. 6" can change dimension, esp. outside. 2 tenons should provide adequate strength.
Thanks. The middle and top rails are 4" - do you think there is a need to leave the tenons unglued on these smaller rails?
No. They will be pretty close together.
There are millions of cedar doors with 8 inches wide rails and almost as wide tenons that have stood the test of time, don’t bother with wood movement at this width and if the door is built with kiln dried wood, it will expand when placed outdoor and make everything tighter.
Thanks Gulfstar. The wood is air dried so hopefully that will work in my favor when it goes outside.
Thanks Gulfstar. The wood is air dried so hopefully that will work in my favor when it goes outside.
I'll be odd man out and say, use a traditional pinned (pegged) mortise and tenon joint or even a bridle joint, not a Domino/s
Gates and doors deal with an incredible amount of stresses. Using small floating tenons would not be my choice.
JMHO
Ed, you make a good point. The parts are already cut on this gate but I have one more to make so I may use traditional methods on that one for comparison. Any thoughts on expansion/contraction of the rail? Thanks
+1 with EdWeber. Floating tenons just add more potential failure points. Pinned M&T with epoxy is the way to go.
Thanks MJ. Definitely using epoxy on this one.
If you own a Domino, and like me, you make your own tenons out of the most appropriate wood, there’s no reason you have to make 3 separate tenons, restricted by the width of the cut setting. You can make one wide mortise up to 2 3/4” deep, and make a compatible-width tenon. Pin them if you feel the need. Much faster than traditional M&T and just as strong.
Great idea - thanks. I've already made the tenons for this gate but will give that a shot on the second gate.
What you are doing with all glued in place will be fine. EdWeber's method is also good. Doing both will be an interesting experiment.
Thanks for your response. I'm feeling better about just gluing all three tenons. I've had movement trouble with an outdoor tabletop so I'm trying to avoid any potential issues with this project.
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